{"schema_version":"1.9.0","id":"GHSA-pcmq-25r3-5w9v","published":"2026-10-07T17:59:32Z","modified":"2026-10-07T18:15:13.120771098Z","aliases":["CVE-2026-106496"],"summary":"Backstage: Inconsistent enforcement of allowed location types during catalog processing","details":"### Impact\n\nUnder certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host.\n\n### Patches\n\nPatched in `@backstage/plugin-catalog-backend` version `3.9.1`\n\n### Workarounds\n\nNo practical workarounds are available. Upgrade to the patched version.","affected":[{"package":{"name":"@backstage/plugin-catalog-backend","ecosystem":"npm","purl":"pkg:npm/%40backstage/plugin-catalog-backend"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.9.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-pcmq-25r3-5w9v/GHSA-pcmq-25r3-5w9v.json"}}],"references":[{"type":"WEB","url":"https://github.com/backstage/backstage/security/advisories/GHSA-pcmq-25r3-5w9v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106496"},{"type":"WEB","url":"https://github.com/backstage/backstage/commit/23774b61560d851bc69cd6a77d12561b24d11afd"},{"type":"PACKAGE","url":"https://github.com/backstage/backstage"},{"type":"WEB","url":"https://github.com/backstage/backstage/releases/tag/v1.54.6"}],"database_specific":{"cwe_ids":["CWE-22","CWE-863"],"github_reviewed":true,"github_reviewed_at":"2026-10-07T17:59:32Z","nvd_published_at":"2026-10-06T22:17:04Z","severity":"LOW"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}